body {
    margin: 0 auto;
    width: 100%;
    max-width: 1080px;
    min-width: 320px;
    background: #fff;
    font-size: 14px;
    font-family: -apple-system, Helvetica, sans-serif;
    line-height: 1.5;
    color: #666;
    -webkit-text-size-adjust: 100% !important;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

img {
    vertical-align: middle;
}

a {
    color: #fff;
    text-decoration: none;
}

.clearfix:before,
.clearfix:after {
    content: "";
    display: table;
}

.clearfix:after {
    clear: both;
}

.clearfix {
    *zoom: 1;
}

.app {
    height: 45px;
}

.app ul li {
    float: left;
    height: 45px;
    line-height: 45px;
    text-align: center;
    background-color: #333333;
    font-size: 14px;
    color: #fff;
}

.app ul li:nth-child(1) {
    width: 8%;
}

.app ul li:nth-child(1) img {
    width: 10px;
}

.app ul li:nth-child(2) {
    width: 10%;
}

.app ul li:nth-child(2) img {
    width: 30px;
    vertical-align: middle;
}

.app ul li:nth-child(3) {
    width: 57%;
}

.app ul li:nth-child(4) {
    width: 25%;
    background-color: #F63515;
}

.search-wrap {
    position: fixed;
    overflow: hidden;
    height: 44px;
    min-width: 320px;
    max-width: 1080px;
    width: 100%;
}

.search-btn {
    position: absolute;
    left: 0;
    top: 0;
    margin: 14px 0 0 15px;
    width: 25px;
    height: 44px;
    background: url(../images/s-btn.png) no-repeat;
    background-size: 20px 18px;
}

.search-login {
    position: absolute;
    right: 0;
    top: 0;
    padding-right: 5px;
    width: 40px;
    height: 44px;
    line-height: 44px;
    text-align: center;
    color: #fff;
}

.search {
    position: relative;
    margin: 7px 50px;
    height: 30px;
    background-color: #fff;
    border-radius: 25px;
    overflow: hidden;
}

.jd-icon {
    position: absolute;
    left: 13px;
    top: 7px;
    width: 20px;
    height: 15px;
    background: url(../images/jd.png) no-repeat;
    background-size: 20px 15px;
}

.jd-icon::after {
    content: "";
    position: absolute;
    top: 0;
    right: -8px;
    display: block;
    width: 1px;
    height: 15px;
    background-color: #ccc;
}

.search-icon {
    position: absolute;
    top: 7px;
    left: 50px;
    width: 18px;
    height: 15px;
    background-color: pink;
    background: url(../images/jd-sprites.png) no-repeat -82px 1px;
    background-size: 200px auto;
}

.search input {
    overflow: hidden;
    padding-left: 80px;
    width: 100%;
    height: 30px;
    line-height: 30px;
    border: 0;
    outline: none;
    /* background-color: red; */
}

.slider img {
    width: 100%;
}

/* 轮播图 */
.swiper {
    width: 100%;
    height: 100%;
}

.swiper-slide {
    text-align: center;
    font-size: 18px;
    background: #fff;

    /* Center slide text vertically */
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    -webkit-align-items: center;
    align-items: center;
}

.swiper-slide img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.brand {
    overflow: hidden;
    border-radius: 10px 10px 0 0;
}

.brand div {
    float: left;
    width: 33.33%;
}

.brand div img {
    width: 100%;
}

nav a {
    float: left;
    width: 20%;
    color: #666;
    text-align: center;
}

nav a img {
    margin-top: 10px;
    width: 40px;
}

nav a span {
    display: block;
}

.news {
    margin-top: 10px;
}

.news a:nth-child(1) {
    width: 50%;
}

.news a:nth-child(n+2) {
    width: 25%;
    border-left: 1px solid #ccc;
}

.news img {
    width: 100%;
}

.news a {
    float: left;
    box-sizing: border-box;
}